This Part Fits the following kits / parts:

#87194 - SHAFT FOR 4 BEVEL GEAR DIFF 4x27mm (4pcs)

Spare parts for #87193 4 Bevel Gear Differential Conversion Set

Strengthened and notched gear shafts, spare part for the
HPI #87193 4 Bevel Gear
Differential Conversion Set for cars or trucks. The
#87193 4 gear conversion is a popular
upgrade, especially for heavy-duty driving and high
horsepower applications. Now HPI offers a precision
factory manufactured set that is a direct replacement for the stock
gears. The extra gears decrease the stress on the drive train for
longer gear life and less
maintenance.